Insulation, Radiant and Vapor Barriers - Recessed can insulation

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comgenboy
01-06-03, 12:18 PM
I removed paneling from a ~450 sq/ft addition on my 36 year-old home. The addition is 30 years old or so.

Before I drywall, I plan on installing some new recessed lighting circuits. I bought 4" IC rated cans. The exisiting insulation is exposed (R-19 in the 2x6 16"OC joist space). There are many places where the kraft-face has holes / rips from the demolition. I know I am going to have to replace some of the insulation because of this. I am curious though how I am supposed to insulate around the recessed cans. Do I stuff un-faced insulation up along the can, or is it okay if the paper touches? I read in the light instructions that the vapor barrier needs to withstand 90 C.

Also, is using a poly sheet tacked up a better idea for a VB or is the kraft-faced insulation enough? In Philly 'burbs if it helps.

Thanks in advance.

Mike134
01-09-03, 07:59 PM
Keep the paper 3 inches away from the can. No problem pushing the bare fiberglass right against and over the IC can. Just besure to follow the manufactuers maximium lamp wattage
comgenboy
01-10-03, 07:32 AM
Thanks Mike! That is what I will plan on doing. Gotta do a bunch of wiring before I get to the insulation stage!